This repository has been archived by the owner on Sep 28, 2019. It is now read-only.
-
Notifications
You must be signed in to change notification settings - Fork 442
/
SearchFragment.java
236 lines (211 loc) · 8.77 KB
/
SearchFragment.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
/*
* Copyright (c) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.example.android.tvleanback.ui;
import android.Manifest;
import android.app.Activity;
import android.content.ActivityNotFoundException;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.os.Bundle;
import android.os.Handler;
import androidx.leanback.app.SearchSupportFragment;
import androidx.leanback.widget.ArrayObjectAdapter;
import androidx.leanback.widget.CursorObjectAdapter;
import androidx.leanback.widget.HeaderItem;
import androidx.leanback.widget.ImageCardView;
import androidx.leanback.widget.ListRow;
import androidx.leanback.widget.ListRowPresenter;
import androidx.leanback.widget.ObjectAdapter;
import androidx.leanback.widget.OnItemViewClickedListener;
import androidx.leanback.widget.Presenter;
import androidx.leanback.widget.Row;
import androidx.leanback.widget.RowPresenter;
import androidx.leanback.widget.SpeechRecognitionCallback;
import androidx.core.app.ActivityOptionsCompat;
import androidx.loader.app.LoaderManager;
import androidx.loader.content.CursorLoader;
import androidx.loader.content.Loader;
import android.text.TextUtils;
import android.util.Log;
import android.widget.Toast;
import com.example.android.tvleanback.BuildConfig;
import com.example.android.tvleanback.R;
import com.example.android.tvleanback.data.VideoContract;
import com.example.android.tvleanback.model.Video;
import com.example.android.tvleanback.model.VideoCursorMapper;
import com.example.android.tvleanback.presenter.CardPresenter;
/*
* This class demonstrates how to do in-app search
*/
public class SearchFragment extends SearchSupportFragment
implements SearchSupportFragment.SearchResultProvider,
LoaderManager.LoaderCallbacks<Cursor> {
private static final String TAG = "SearchFragment";
private static final boolean DEBUG = BuildConfig.DEBUG;
private static final boolean FINISH_ON_RECOGNIZER_CANCELED = true;
private static final int REQUEST_SPEECH = 0x00000010;
private final Handler mHandler = new Handler();
private ArrayObjectAdapter mRowsAdapter;
private String mQuery;
private final CursorObjectAdapter mVideoCursorAdapter =
new CursorObjectAdapter(new CardPresenter());
private int mSearchLoaderId = 1;
private boolean mResultsFound = false;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mRowsAdapter = new ArrayObjectAdapter(new ListRowPresenter());
mVideoCursorAdapter.setMapper(new VideoCursorMapper());
setSearchResultProvider(this);
setOnItemViewClickedListener(new ItemViewClickedListener());
if (DEBUG) {
Log.d(TAG, "User is initiating a search. Do we have RECORD_AUDIO permission? " +
hasPermission(Manifest.permission.RECORD_AUDIO));
}
if (!hasPermission(Manifest.permission.RECORD_AUDIO)) {
if (DEBUG) {
Log.d(TAG, "Does not have RECORD_AUDIO, using SpeechRecognitionCallback");
}
// SpeechRecognitionCallback is not required and if not provided recognition will be
// handled using internal speech recognizer, in which case you must have RECORD_AUDIO
// permission
setSpeechRecognitionCallback(new SpeechRecognitionCallback() {
@Override
public void recognizeSpeech() {
try {
startActivityForResult(getRecognizerIntent(), REQUEST_SPEECH);
} catch (ActivityNotFoundException e) {
Log.e(TAG, "Cannot find activity for speech recognizer", e);
}
}
});
} else if (DEBUG) {
Log.d(TAG, "We DO have RECORD_AUDIO");
}
}
@Override
public void onPause() {
mHandler.removeCallbacksAndMessages(null);
super.onPause();
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (requestCode) {
case REQUEST_SPEECH:
switch (resultCode) {
case Activity.RESULT_OK:
setSearchQuery(data, true);
break;
default:
// If recognizer is canceled or failed, keep focus on the search orb
if (FINISH_ON_RECOGNIZER_CANCELED) {
if (!hasResults()) {
if (DEBUG) Log.v(TAG, "Voice search canceled");
getView().findViewById(R.id.lb_search_bar_speech_orb).requestFocus();
}
}
break;
}
break;
}
}
@Override
public ObjectAdapter getResultsAdapter() {
return mRowsAdapter;
}
@Override
public boolean onQueryTextChange(String newQuery) {
if (DEBUG) Log.i(TAG, String.format("Search text changed: %s", newQuery));
loadQuery(newQuery);
return true;
}
@Override
public boolean onQueryTextSubmit(String query) {
if (DEBUG) Log.i(TAG, String.format("Search text submitted: %s", query));
loadQuery(query);
return true;
}
public boolean hasResults() {
return mRowsAdapter.size() > 0 && mResultsFound;
}
private boolean hasPermission(final String permission) {
final Context context = getActivity();
return PackageManager.PERMISSION_GRANTED == context.getPackageManager().checkPermission(
permission, context.getPackageName());
}
private void loadQuery(String query) {
if (!TextUtils.isEmpty(query) && !query.equals("nil")) {
mQuery = query;
getLoaderManager().initLoader(mSearchLoaderId++, null, this);
}
}
public void focusOnSearch() {
getView().findViewById(R.id.lb_search_bar).requestFocus();
}
@Override
public Loader<Cursor> onCreateLoader(int id, Bundle args) {
String query = mQuery;
return new CursorLoader(
getActivity(),
VideoContract.VideoEntry.CONTENT_URI,
null, // Return all fields.
VideoContract.VideoEntry.COLUMN_NAME + " LIKE ? OR " +
VideoContract.VideoEntry.COLUMN_DESC + " LIKE ?",
new String[]{"%" + query + "%", "%" + query + "%"},
null // Default sort order
);
}
@Override
public void onLoadFinished(Loader<Cursor> loader, Cursor cursor) {
int titleRes;
if (cursor != null && cursor.moveToFirst()) {
mResultsFound = true;
titleRes = R.string.search_results;
} else {
mResultsFound = false;
titleRes = R.string.no_search_results;
}
mVideoCursorAdapter.changeCursor(cursor);
HeaderItem header = new HeaderItem(getString(titleRes, mQuery));
mRowsAdapter.clear();
ListRow row = new ListRow(header, mVideoCursorAdapter);
mRowsAdapter.add(row);
}
@Override
public void onLoaderReset(Loader<Cursor> loader) {
mVideoCursorAdapter.changeCursor(null);
}
private final class ItemViewClickedListener implements OnItemViewClickedListener {
@Override
public void onItemClicked(Presenter.ViewHolder itemViewHolder, Object item,
RowPresenter.ViewHolder rowViewHolder, Row row) {
if (item instanceof Video) {
Video video = (Video) item;
Intent intent = new Intent(getActivity(), VideoDetailsActivity.class);
intent.putExtra(VideoDetailsActivity.VIDEO, video);
Bundle bundle = ActivityOptionsCompat.makeSceneTransitionAnimation(
getActivity(),
((ImageCardView) itemViewHolder.view).getMainImageView(),
VideoDetailsActivity.SHARED_ELEMENT_NAME).toBundle();
getActivity().startActivity(intent, bundle);
} else {
Toast.makeText(getActivity(), ((String) item), Toast.LENGTH_SHORT).show();
}
}
}
}